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# Unit: Playing with numbers

#### 0

Possible mastery points

## Factors and multiples

Practice
Relate factors and multiplesGet 5 of 7 questions to level up!
Intro to factors and multiplesGet 5 of 7 questions to level up!

## Prime and composite numbers

Practice
Identify prime numbersGet 5 of 7 questions to level up!
Identify composite numbersGet 5 of 7 questions to level up!

#### Quiz 1

Level up on the above skills and collect up to 500 Mastery points

## Common factors and common multiples

Learn
No videos or articles available in this lesson
Practice
Identify common factorsGet 3 of 4 questions to level up!
Identify co-prime numbersGet 3 of 4 questions to level up!

## Some more divisibility rules

Practice
Divisibility tests for 8 and 11Get 5 of 7 questions to level up!
DivisibilityGet 5 of 7 questions to level up!
Divisibility by 6, 12, 18 and 20Get 3 of 4 questions to level up!

#### Quiz 2

Level up on the above skills and collect up to 600 Mastery points

## Prime factorisation

Practice
Prime factorizationGet 5 of 7 questions to level up!
Prime factorization of larger numbersGet 3 of 4 questions to level up!

## Highest common factor

Practice
Greatest common factorGet 5 of 7 questions to level up!

## Lowest common multiple

#### Quiz 3

Level up on the above skills and collect up to 400 Mastery points

## Some problems on HCF and LCM

Practice
GCF & LCM word problemsGet 5 of 7 questions to level up!
Up next for you:

#### Unit test

Level up on all the skills in this unit and collect up to 1600 Mastery points!